E. Define the term ‘user interface’, giving examples. f. What is a mobile application?

g. Explain briefly what a multi-tasking system is and how it works?​

Explanation:

e. The user interface (UI) is the point of human-computer interaction and communication in a device. This can include display screens, keyboards, a mouse and the appearance of a desktop. It is also the way through which a user interacts with an application or a website.

f. A mobile application, also referred to as a mobile app or simply an app, is a computer program or software application designed to run on a mobile device such as a phone, tablet, or watch.

g. Multitasking, in an operating system, is allowing a user to perform more than one computer task (such as the operation of an application program) at a time. The operatingsystem is able to keep track of where you are in these tasks and go from one to the other without losing information.

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